1. Being a "tribe" does not make a group primitive, or the reverse. The Aztecs, Incas, etc., had "Empires"--were they primitive? The conquistadors certainly thought so. For that matter, the Iroquois Confederacy partially inspired the US Constitution, but they've also been called primitive.
2. One, bats are not birds, two,
the Bible proves itself wrong by being logically inconsistent.
3. "Creator" was, as has been repeatedly pointed out, a reference to a deistic notion (and even then was a mangling of Jefferson's original), and even so does not necessarily refer to a monotheistic creator. The religious views of the people are not relevant in this matter.
4. The New Testament says you can sin however the fuck much you want and get into Heaven as long as you kiss the invisible Jigglypuff-in-space's ass. See Matthew 5, particularly verse 19.
5. Why do you Christians need to use the government to force everyone else to act as your religion commands?
6a. Which I already pointed out is a massively flawed process.
6b. ONLY IF THE PEOPLE VOTE ON IT. This is why Spain is legitimately a monarchy, as is Norway, as is Australia, as is Belgium, along with a number of other nations; however note that these countries are parliamentary constitutional monarchies, with the monarch acting as the head of state while the actual executive power is exercised by those with the democratic legitimacy to do so.
6c. See 6a.
6d. And who the fuck is the Church accountable to? The Church was just as bad then as they are now; perhaps in different ways, but they were absolutely fucking corrupt (fucking in both the literal and figurative senses). Again, nobody has ever produced a proof of God's existence (and those claiming it have the burden of proof), and any god that has been posited by humanity has been disproven.
6e. That's hardly a guarantee, especially if the monarch has acted in a way to endear the military to himself and make it clear that loyalty will be richly rewarded in the event of rebellion. As for "legitimate Democracy", the UK
is a legitimate democracy (indeed no system of government that is not democratic
can be legitimate, as they lack the vital popular mandate), you're just pissy about how it got there.